This kit contains two one-piece plastic bogies with plastic bolsters which can swivel, if required. The wagons can be singly or in pairs. Kit also contains two X "H" girder load, chain etc. Complete with metal wheels. Designed to use Bemo OO9 couplings (not included) Manfactured by R.Hudson LTD of Leeds these bolster wagons were shown in their post W.W.1 catalogue. They were supplied singley or in pairs and when used in apirs were designed for carrying girders, rails and logs etc.